<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
<script>
    const obj = {
        run(){
            console.log(this);
        }
    }
    // obj.run();
    const fn = obj.run;
    fn();
</script>
</html>